ok right off the bat lets check extrusion caliper or decent ruler manually heat up hotend to current filament temperature then remove the bowden tube pull slowly the tip of filament will be multon. next cut the filament off flush to the end of tube.
with hotend still at temp you should be able to use manual control and extrude a given length. extrude 100m then measure you should have a 100m length of filament stick out the end of the bowden tube let know if under or over and by how much.
if havent altered any settings it should be very close but its one of easy items to check.
